/* 178体育安装 · 共享站点样式 /assets/site.css */

*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --ink: #070B14;
  --carbon: #111827;
  --navy-a: #0B1B3A;
  --navy-b: #071226;
  --cyan: #22D3EE;
  --cyan-deep: #0EA5B7;
  --orange: #FF6B2C;
  --lime: #A3E635;
  --amber: #FBBF24;
  --ice: #E5F2FF;
  --slate: #94A3B8;
  --line: rgba(34, 211, 238, 0.24);
  --line-soft: rgba(229, 242, 255, 0.10);
  --glass: rgba(229, 242, 255, 0.05);
  --shell: 1240px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --display: "Oswald", "Bebas Neue", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html.nav-locked { overflow: hidden; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--ice);
  background:
    radial-gradient(1100px 560px at 82% -12%, rgba(34, 211, 238, 0.13), transparent 62%),
    radial-gradient(900px 520px at -6% 6%, rgba(255, 107, 44, 0.09), transparent 58%),
    var(--ink);
  background-attachment: fixed, fixed, fixed;
}

img, svg { max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 800; line-height: 1.16; letter-spacing: 0.01em; }
p { margin: 0 0 1em; }
a { color: var(--cyan); }

::selection { background: rgba(34, 211, 238, 0.3); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

#main-content { scroll-margin-top: 130px; }

/* ---------- 容器与基础排版 ---------- */

.skip-link {
  position: absolute;
  left: 16px;
  top: -70px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 0 0 10px 10px;
  background: var(--cyan);
  color: #04121A;
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 0; }

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 40px);
}

.section { position: relative; padding-block: clamp(32px, 5vw, 64px); }
.section--band {
  background: linear-gradient(120deg, rgba(11, 27, 58, 0.72), rgba(7, 18, 38, 0.34));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 16px 26px;
  margin-bottom: clamp(18px, 2.4vw, 30px);
}
.section-title { margin: 0; font-size: clamp(24px, 3.4vw, 36px); }
.section-note { margin: 0; max-width: 40ch; color: var(--slate); font-size: 13.5px; line-height: 1.6; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--orange); }

.lead { font-size: clamp(17px, 1.4vw, 19px); line-height: 1.6; color: #CFE4F7; }
.muted { color: var(--slate); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.prose { max-width: 72ch; font-size: 16.5px; line-height: 1.7; }
.prose h2 { margin: 1.6em 0 0.5em; font-size: clamp(21px, 2.4vw, 27px); }
.prose h3 { margin: 1.4em 0 0.45em; font-size: 19px; }
.prose ul, .prose ol { margin: 0 0 1.1em; padding-left: 1.2em; color: #D6E7F7; }
.prose li { margin-bottom: 0.4em; }
.prose a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: none;
  color: var(--ice);
  font-family: var(--body);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background-color 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.btn--primary {
  background: linear-gradient(135deg, var(--orange), #FF8F4D);
  color: #1A0A02;
  box-shadow: 0 8px 24px rgba(255, 107, 44, 0.28);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(255, 107, 44, 0.42); }
.btn--ghost {
  border-color: var(--line);
  background: rgba(34, 211, 238, 0.06);
  color: var(--cyan);
}
.btn--ghost:hover { background: rgba(34, 211, 238, 0.14); border-color: var(--cyan); }
.btn--quiet { color: var(--slate); border-color: var(--line-soft); }
.btn--quiet:hover { color: var(--ice); border-color: var(--line); }

/* ---------- 头部 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
}

.header-rail {
  position: relative;
  background: linear-gradient(90deg, var(--navy-a), var(--navy-b));
  border-bottom: 1px solid var(--line);
}
.header-rail__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  min-height: 40px;
  font-size: 13px;
}
.header-rail__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  min-width: 0;
}
.brand-mark {
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  white-space: nowrap;
}
.brand-tagline { color: var(--slate); white-space: nowrap; }

.header-rail__status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  min-width: 0;
  color: var(--slate);
}
.status-dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(163, 230, 53, 0.16);
  animation: statusPulse 2.6s var(--ease) infinite;
}
@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(163, 230, 53, 0.16); }
  50% { box-shadow: 0 0 0 8px rgba(163, 230, 53, 0.04); }
}
.status-text {
  min-width: 0;
  max-width: 52ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-rail__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}
.rail-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.rail-link:hover { border-bottom-color: var(--cyan); }
.rail-sep { color: var(--line); }
.rail-clock { color: var(--ice); letter-spacing: 0.08em; font-variant-numeric: tabular-nums; }

.header-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  pointer-events: none;
  transition: transform 0.12s linear;
}

.header-main {
  background: rgba(7, 11, 20, 0.84);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.header-main__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.6vw, 36px);
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: var(--ice);
  text-decoration: none;
}
.brand__glyph {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: #04121A;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-deep));
  box-shadow: 0 0 22px rgba(34, 211, 238, 0.34);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 84% 100%, 0 100%);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; gap: 2px; }
.brand__name { font-family: var(--display); font-weight: 800; font-size: 19px; letter-spacing: 0.05em; }
.brand__sub {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.primary-nav { margin-left: auto; }
.primary-nav__lead,
.primary-nav__foot,
.primary-nav__close { display: none; }
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 1vw, 12px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.primary-nav__link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--ice);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.primary-nav__link::after {
  content: "";
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: var(--cyan);
  transition: transform 0.22s var(--ease);
}
.primary-nav__link:hover { color: #fff; background: rgba(34, 211, 238, 0.08); }
.primary-nav__link:hover::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"] { color: var(--cyan); }
.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--orange);
}

.header-actions { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(34, 211, 238, 0.06);
  color: var(--ice);
  font-family: var(--body);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.nav-toggle:hover { background: rgba(34, 211, 238, 0.14); }
.nav-toggle__bars { display: flex; flex-direction: column; gap: 4px; width: 18px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 70;
  border: 0;
  padding: 0;
  background: rgba(4, 7, 14, 0.64);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s var(--ease);
}
.nav-scrim[data-open] { opacity: 1; pointer-events: auto; }

/* ---------- 网格 ---------- */

.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--editorial { grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); }

/* ---------- 卡片与标签 ---------- */

.card {
  position: relative;
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--carbon);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}
.card--glass {
  background: linear-gradient(150deg, rgba(229, 242, 255, 0.07), rgba(229, 242, 255, 0.02));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.card--accent { border-left: 3px solid var(--orange); }
.card__title { margin: 0 0 8px; font-size: 19px; }
.card__meta {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}
.card__body { margin: 0; font-size: 15px; color: var(--slate); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.07);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tag--orange { color: var(--orange); border-color: rgba(255, 107, 44, 0.4); background: rgba(255, 107, 44, 0.1); }
.tag--lime { color: var(--lime); border-color: rgba(163, 230, 53, 0.4); background: rgba(163, 230, 53, 0.1); }
.tag--amber { color: var(--amber); border-color: rgba(251, 191, 36, 0.4); background: rgba(251, 191, 36, 0.1); }
.tag--muted { color: var(--slate); border-color: var(--line-soft); background: rgba(148, 163, 184, 0.08); }

/* ---------- 数据锚点 ---------- */

.stat { display: flex; flex-direction: column; gap: 6px; }
.stat__value {
  font-family: var(--mono);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
}
.stat__value--cyan { color: var(--cyan); }
.stat__value--orange { color: var(--orange); }
.stat__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ---------- 横向轨道 ---------- */

.h-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 14px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.h-scroll > * { flex: 0 0 min(320px, 82vw); scroll-snap-align: start; }
.h-scroll::-webkit-scrollbar { height: 8px; }
.h-scroll::-webkit-scrollbar-track { background: rgba(229, 242, 255, 0.06); border-radius: 99px; }
.h-scroll::-webkit-scrollbar-thumb { background: var(--line); border-radius: 99px; }
.h-scroll::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* ---------- 技能树式步骤路径 ---------- */

.steps {
  counter-reset: step;
  margin: 0;
  padding: 0;
  list-style: none;
}
.steps__item {
  position: relative;
  padding: 0 0 28px 56px;
  border-left: 1px solid var(--line);
}
.steps__item:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps__item::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -20px;
  top: -4px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--carbon);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
}
.steps__item::after {
  content: "";
  position: absolute;
  left: -5px;
  top: 42px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.steps__title { margin: 0 0 6px; font-size: 18px; }
.steps__body { margin: 0; font-size: 14.5px; color: var(--slate); }

/* ---------- 面包屑 ---------- */

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}
.breadcrumbs__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumbs__item + .breadcrumbs__item::before { content: "/"; color: var(--line); }
.breadcrumbs a { color: var(--slate); text-decoration: none; }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs [aria-current="page"] { color: var(--ice); }

/* ---------- 提示块 ---------- */

.callout {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: rgba(34, 211, 238, 0.06);
  font-size: 15px;
  color: var(--ice);
}
.callout--amber { border-left-color: var(--amber); background: rgba(251, 191, 36, 0.07); }
.callout__title { margin: 0 0 6px; font-size: 16px; letter-spacing: 0.02em; }

/* ---------- 标签页 ---------- */

.tabs { display: grid; gap: 18px; }
.tabs__list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.72);
}
.tab {
  flex: 0 0 auto;
  padding: 9px 18px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--slate);
  font-family: var(--body);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.tab:hover { color: var(--ice); }
.tab[aria-selected="true"] {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-deep));
  color: #04121A;
}
.tabs__panel {
  padding: clamp(18px, 2vw, 24px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--carbon);
}
.tabs__panel[hidden] { display: none; }

/* ---------- 图片容器 ---------- */

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--navy-a), var(--navy-b));
  isolation: isolate;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, rgba(34, 211, 238, 0.12), transparent 44%),
    repeating-linear-gradient(90deg, rgba(229, 242, 255, 0.05) 0 1px, transparent 1px 46px);
}
.media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--cinema { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--tilt { clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%); }
.media-frame__badge {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
}
.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  margin: 0;
  padding: 14px 16px;
  background: linear-gradient(0deg, rgba(7, 11, 20, 0.9), transparent);
  font-size: 13.5px;
  color: var(--ice);
}

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  background: linear-gradient(180deg, var(--navy-a), var(--navy-b) 56%, #05080F);
  border-top: 1px solid var(--line);
}
.footer-beam {
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--orange), transparent);
  opacity: 0.85;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(118px, 0.7fr)) minmax(220px, 1.1fr);
  gap: clamp(22px, 3vw, 44px);
  padding-block: clamp(36px, 5vw, 60px);
}
.footer-brand .brand { margin-bottom: 14px; }
.brand--footer .brand__glyph { width: 40px; height: 40px; font-size: 17px; }
.footer-brand__summary {
  margin: 0;
  max-width: 34ch;
  font-size: 14.5px;
  color: var(--slate);
}
.footer-brand__marks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.mark {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.06);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-col__title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate);
}
.footer-col__list { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.footer-col__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ice);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}
.footer-col__link::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--cyan);
  opacity: 0.5;
  transform: rotate(45deg);
  transition: opacity 0.18s var(--ease), background-color 0.18s var(--ease);
}
.footer-col__link:hover { color: var(--cyan); transform: translateX(3px); }
.footer-col__link:hover::before { opacity: 1; background: var(--orange); }

.footer-contact {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.footer-contact__line {
  display: flex;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--ice);
}
.footer-contact__label {
  flex: 0 0 44px;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}
.footer-contact__value { word-break: break-word; }
.footer-contact__value--mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.footer-contact__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 18px 28px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--slate);
}
.footer-base p { margin: 0; }
.footer-base__icp { font-family: var(--mono); letter-spacing: 0.04em; }
.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-legal__links a { color: var(--slate); text-decoration: none; }
.footer-legal__links a:hover { color: var(--cyan); }
.footer-base__copy { white-space: nowrap; }

/* ---------- 显现动效 ---------- */

.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}
.has-js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */

@media (max-width: 1180px) {
  .header-cta { padding: 10px 14px; font-size: 13.5px; }
  .footer-grid {
    grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(110px, 0.7fr));
  }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1000px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    width: min(88vw, 360px);
    margin: 0;
    padding: 84px 22px 34px;
    overflow-y: auto;
    border-left: 1px solid var(--line);
    background: linear-gradient(160deg, rgba(11, 27, 58, 0.98), rgba(7, 18, 38, 0.98));
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transform: translateX(102%);
    visibility: hidden;
    transition: transform 0.26s var(--ease), visibility 0.26s var(--ease);
  }
  .primary-nav[data-open] { transform: translateX(0); visibility: visible; }

  .primary-nav__lead {
    display: block;
    margin: 0 0 14px;
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--slate);
  }
  .primary-nav__close {
    display: grid;
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(34, 211, 238, 0.08);
    color: var(--ice);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
  }
  .primary-nav__close:hover { background: rgba(34, 211, 238, 0.18); }

  .primary-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .primary-nav__link {
    padding: 15px 12px;
    font-size: 17px;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
  }
  .primary-nav__link::after { display: none; }
  .primary-nav__link[aria-current="page"] {
    background: rgba(34, 211, 238, 0.1);
    border-left: 3px solid var(--orange);
    padding-left: 9px;
  }
  .primary-nav__foot { display: grid; gap: 10px; margin-top: 20px; }
  .primary-nav__cta { width: 100%; }
  .primary-nav__note { margin: 0; font-size: 12.5px; color: var(--slate); }
}

@media (max-width: 900px) {
  .header-rail__status { display: none; }
  .grid--2,
  .grid--3,
  .grid--editorial { grid-template-columns: minmax(0, 1fr); }
  .section-head { grid-template-columns: minmax(0, 1fr); }
  .section-note { max-width: none; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .header-main__inner { min-height: 62px; gap: 10px; }
  .brand__glyph { width: 38px; height: 38px; font-size: 16px; }
  .brand__name { font-size: 16px; }
  .brand__sub { font-size: 10px; letter-spacing: 0.1em; }
  .brand-tagline { display: none; }
  .header-cta { padding: 9px 12px; font-size: 13px; }
  .nav-toggle__label { display: none; }
  .nav-toggle { padding: 10px 12px; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .footer-base__copy { white-space: normal; }
}

@media (max-width: 520px) {
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-contact { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .has-js [data-reveal] { opacity: 1; transform: none; }
  .status-dot { animation: none; }
}